Wifi dont reconnect

[kraleksandr]

My PI connected to the other world through wifi stick. 20 minutes ago I rebooted my router and now I cant connect to my RPi through SSH, samba, etc. Why wifi isn't reconnects?

[Koenkk]

did you already try another reboot? and what wifi stick do you have (model)?

[kraleksandr]

ANother router reboot? Yes. It didnt help.
Wifi stick is "rolsen mu3-wn823n".

[Koenkk]

Did you already try connecting the wifi stick to an powered USB hub?

[kraleksandr]

No, you dont understand. Wifi works (60Mbit/s).Samba works over wifi. SSH works over wifi. But if I reboot my router, RPi becomes offline. Even 20 mins after RPi still offline.

[Koenkk]

The software does not automatically reconnect yet

[kraleksandr]

Okay. What about next version?

[Koenkk]

It does not have that either, however I may have found a solution, what kind of network protection do you have (E.G. WPA, WPA2, WEP).?

[kraleksandr]

WPA2 '

[Koenkk]

Can you try the following:

SSH in and change the /etc/network/interfaces file to this

Code:

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa-roam.conf

iface default inet dhcp

Now execute this command

Code:

sudo nano /etc/wpa_supplicant/wpa-roam.conf

Fill the file with this (of course change the ssid and pass to your situation).

Code:

update_config=1

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev

network={
        ssid="ssid"
        psk="pass"
        id_str="home"
}

Now execute

Code:

sudo ifdown wlan0
sudo ifup wlan0

from now on wlan0 should automatically reconnect

[kraleksandr]

I think it was bad idea to try this through wifi Even with down && up in one row.
Anyway, Next router reboot will be between 02-09 AM (GMT+4).

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I cant understand this
Looks like it works (at 3rd attempt), autoreconnects I'll test later.

[kraleksandr]

Ye[,it works. Thanks.

[Koenkk]

How fast does it reconnects and did you noticed any side effects?

[kraleksandr]

1) Faster than router connects to the Internet (full reboot 93sec)
2) I dont know what I must look for. At first sight everything works as before

[Koenkk]

ok nice, thanks!